Vitamin A, Vitamin B, Vitamin C, Vitamin D, Vitamin E can be eaten together, but need to pay attention to the proportion and matching. Vitamins are a class of organic compounds that are necessary for maintaining normal life activities in the human body, and can be categorized into fat-soluble vitamins, including vitamin A, vitamin D, vitamin E, vitamin K, and water-soluble vitamin B, vitamin C, and so on. Healthy people who maintain a balanced diet usually do not need additional vitamin supplements. If the body has vitamin intake or malabsorption, etc., and needs to supplement vitamins, vitamin A, vitamin B, vitamin C, vitamin D, vitamin E can be taken together. But usually, the human body will not be deficient in a variety of vitamins at the same time, such as the lack of only one vitamin, it is recommended that targeted supplementation can be. Vitamins are not supplemented the more the better, such as excessive intake will also cause the corresponding symptoms of toxicity, so it is not recommended to blindly multi-vitamin supplementation. Excessive intake of vitamin A can lead to indigestion, joint pain, decalcification of bones and loss of appetite. Overdose of vitamin B can produce allergies, swelling, tingling, paralysis, and even neurotoxicity. Overdose of vitamin C can stimulate bleeding of the gastric mucosa, leading to stomach pain and intestinal dysfunction. Overdose of vitamin D can lead to nausea and vomiting, thirst, itchy skin, muscle pain and other conditions. Therefore, although all types of vitamins can be taken together, but it is not recommended to take with their own collocation, to avoid taking too much on the body to cause a certain burden.